They have two body parts: a prosoma (cephalothorax) and an abdomen. They have eight legs, unless they've lost any in an accident or fight. They have several eyes which are usually tiny. read more
Like all arachnids, spiders have just two body regions, a cephalothorax, and an abdomen. In spiders, these two body regions join at a narrow waist, called a pedicel. The abdomen is soft and unsegmented, while the cephalothorax is harder and includes the eight legs that spiders are known for. read more